Which component is considered the brain of the computer? MCQ with Answer and Explanation

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Which component is considered the brain of the computer?

A. Hard disk

B. CPU

C. RAM

D. Monitor

Answer: Option B

Solution (By JKSSB Mock Tests)

The Central Processing Unit (CPU) is often called the brain of the computer because it executes instructions.

This question belongs to: Computer Computer Fundamentals

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Question #1

Which unit measures the speed of a computer's processor?

A. MIPS

B. Bytes

C. Baud

D. Hertz

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Correct Answer: Option D

Explanation:
Processor speed is measured in Hertz (cycles per second), e.g., GHz.

This question belongs to: Computer Computer Fundamentals

Question #2

What is the binary equivalent of octal 17?

A. 1101

B. 1110

C. 1011

D. 1111

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Correct Answer: Option D

Explanation:
Octal 17 = 1 7 -> 001 111 = 1111 binary.

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Question #3

Which type of computer is used in a modern car's engine control?

A. Supercomputer

B. Embedded system

C. Mainframe

D. Minicomputer

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Correct Answer: Option B

Explanation:
Engine control units (ECUs) are embedded computers designed for specific automotive functions.

This question belongs to: Computer Computer Fundamentals

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